Wulfenite and Lazulite Physical Properties

Wulfenite

Lazulite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.50-7.003.04-3.17

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

Uneven, Uneven, Gemstones of the world (2001) More from other references

1.6 Cleavage

On {011}, distinct; on {001}, {013}, indistinct

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

35.5

2 10

1.8 Chemical Composition

PbMoO 4Walter Schumann , Gemstones of the world (2001)

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Wulfenite and Lazulite Chemical Formula

While comparing Wulfenite and Lazulite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Wulfenite and Lazulite chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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Wulfenite and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wulfenite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.